کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7889638 1509863 2018 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of ultraviolet curing kinetics on the mechanical properties of out of die pultruded vinyl ester composites
ترجمه فارسی عنوان
اثر سینتیک خنثی سازی فرابنفش بر خواص مکانیکی خارج از کامپوزیت های وینیل استر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
This paper analyses the effect of curing kinetics on the mechanical properties of composites manufactured by out of die ultraviolet (UV) cured pultrusion. Curing kinetics have been modified using two combinations of depth curing (BAPO) and surface curing (α aminoketone) photoinitiators. The rate constant of the autocatalytic model k, shows that the curing kinetics of the formulation with the higher content of BAPO and lower content of α aminoketone is faster in the studied intensity range. Spectrometry results justify the differences in curing kinetics, since the light transmission through thickness is higher during the whole UV curing process due to photobleaching effect of BAPO. Faster UV curing kinetics generates lower expansion at the exit of the pultrusion die, reducing the void content approximately 90%. Consequently, flexural and interlaminar shear strength, as well as specific energy absorption index of the fast curing resin, are higher.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 109, June 2018, Pages 280-289
نویسندگان
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